Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

George Ishak, MD

Individual provider Hospitalist Physician · NPI 1790190825

George Ishak, MD is an Internal Medicine in Thousand Oaks, California. Qualified in 2014, 12 years ago. Practices with North East Medical Services, a 143-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
12
Licensed in
CA
In the registry since
2014
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

215 W Janss Rd
Thousand Oaks, CA 91360-1847
Phone: (805) 497-2727
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 211 Eastmoor Ave, Daly City, CA 94015 — (415) 391-9686
  • 18321 Clark St, Tarzana, CA 91356-3501 — (818) 810-0800
  • 2190 Lynn Rd Ste 300, Thousand Oaks, CA 91360-8024 — (805) 370-4802

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence A145111 (CA)
Hospitalist Physician Taxonomy 208M00000X · Licence A145111 (CA)

Record details

NPI number1790190825
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 27, 2014
Last updated in NPPESSeptember 13, 2024
Certification dateSeptember 13, 2024
Mailing address211 Eastmoor Ave, Daly City, CA 94015-2036

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Also practisesHOSPITALIST
Medical schoolOTHER
Graduated 2014 (12 years in practice)
Group practice North East Medical Services — 143 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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